/* MessBuddy - Main Stylesheet */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark-color);
    line-height: 1.6;
}

/* Auth Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h1 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin-bottom: 10px;
}

.auth-header p {
    color: #666;
    font-size: 0.95em;
}

.auth-tabs {
    display: flex;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--light-color);
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1em;
    color: #666;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #357abd;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #45b869;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-warning {
    background: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background: #d68910;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9em;
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Navigation Bar */
.navbar {
    background: var(--dark-color);
    color: white;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    max-width: 100%;
}

.navbar-brand {
    display: flex;
    align-items: center;
    padding: 15px 0;
}

.navbar-brand h2 {
    color: white;
    font-size: 1.5em;
    margin: 0;
    margin-right: 20px;
}

.navbar-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9em;
    margin: 0;
}

.navbar-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    align-items: center;
}

.navbar-menu li {
    margin: 0;
}

.navbar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 12px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    background: rgba(255,255,255,0.1);
    border-bottom-color: var(--primary-color);
    color: white;
}

.navbar-menu a i {
    margin-right: 8px;
    width: 18px;
    text-align: center;
}

.navbar-menu a span {
    display: inline;
}

/* Hide text labels on very small screens, show only icons */
@media (max-width: 600px) {
    .navbar-menu a span {
        display: none;
    }
    
    .navbar-menu a {
        padding: 15px 10px;
        justify-content: center;
    }
    
    .navbar-menu a i {
        margin-right: 0;
    }
}

.main-content {
    flex: 1;
    padding: 30px;
    background: #f5f7fa;
    width: 100%;
}

.header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: var(--dark-color);
    font-size: 1.8em;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info span {
    color: var(--dark-color);
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--light-color);
}

.card-header h2 {
    color: var(--dark-color);
    font-size: 1.4em;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}

table tr:hover {
    background: #f8f9fa;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.stat-card.secondary {
    border-left-color: var(--secondary-color);
}

.stat-card.warning {
    border-left-color: var(--warning-color);
}

.stat-card.danger {
    border-left-color: var(--danger-color);
}

.stat-card h3 {
    color: #666;
    font-size: 0.9em;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.stat-card .stat-value {
    font-size: 2em;
    font-weight: bold;
    color: var(--dark-color);
}

/* Messages */
.message {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: none;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.show {
    display: block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    overflow: auto;
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--light-color);
}

.modal-header h2 {
    color: var(--dark-color);
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--dark-color);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: transparent;
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 1.5em;
    margin-left: 10px;
}

.menu-toggle:hover {
    color: var(--primary-color);
}

/* Responsive Breakpoints */

/* Large Tablets and Small Desktops */
@media (max-width: 1024px) {
    .navbar-menu a {
        padding: 12px 10px;
        font-size: 0.9em;
    }
    
    .navbar-menu a i {
        margin-right: 6px;
    }
    
    .main-content {
        padding: 25px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .card {
        padding: 20px;
    }
    
    .header {
        padding: 15px 20px;
    }
    
    .header h1 {
        font-size: 1.6em;
    }
}

/* Tablets */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .navbar-container {
        flex-wrap: wrap;
        padding: 0 15px;
    }
    
    .navbar-brand {
        flex: 1;
        min-width: 0;
    }
    
    .navbar-brand h2 {
        font-size: 1.3em;
    }
    
    .navbar-brand p {
        display: none;
    }
    
    .navbar-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        background: var(--dark-color);
        position: absolute;
        top: 100%;
        left: 0;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .navbar-menu li {
        width: 100%;
    }
    
    .navbar-menu a {
        padding: 12px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        border-left: 3px solid transparent;
        border-bottom-width: 1px;
    }
    
    .navbar-menu a:hover,
    .navbar-menu a.active {
        border-left-color: var(--primary-color);
        border-bottom-color: transparent;
    }
    
    .main-content {
        padding: 15px;
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 15px;
    }
    
    .header h1 {
        font-size: 1.4em;
        width: 100%;
    }
    
    .user-info {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-card .stat-value {
        font-size: 1.8em;
    }
    
    .card {
        padding: 20px;
        margin-bottom: 20px;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .card-header h2 {
        font-size: 1.2em;
    }
    
    .auth-card {
        padding: 30px 25px;
    }
    
    .auth-header h1 {
        font-size: 2em;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
        margin: 10% auto;
    }
    
    table {
        font-size: 0.9em;
    }
    
    table th,
    table td {
        padding: 8px 6px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.95em;
    }
    
    .btn-sm {
        padding: 6px 12px;
        font-size: 0.85em;
    }
}

/* Mobile Phones */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .navbar-container {
        padding: 0 10px;
    }
    
    .navbar-brand h2 {
        font-size: 1.2em;
    }
    
    .menu-toggle {
        font-size: 1.3em;
        padding: 8px;
    }
    
    .navbar-menu a {
        padding: 10px 15px;
        font-size: 0.9em;
    }
    
    .navbar-menu a i {
        margin-right: 10px;
        width: 20px;
    }
    
    .main-content {
        padding: 10px;
    }
    
    .header {
        padding: 12px;
        margin-bottom: 15px;
    }
    
    .header h1 {
        font-size: 1.3em;
    }
    
    .user-info {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    
    .user-info span {
        font-size: 0.9em;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 20px;
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .stat-card h3 {
        font-size: 0.85em;
    }
    
    .stat-card .stat-value {
        font-size: 1.6em;
    }
    
    .card {
        padding: 15px;
        margin-bottom: 15px;
        border-radius: 8px;
    }
    
    .card-header {
        margin-bottom: 15px;
        padding-bottom: 12px;
    }
    
    .card-header h2 {
        font-size: 1.1em;
    }
    
    .auth-page {
        padding: 10px;
    }
    
    .auth-container {
        max-width: 100%;
    }
    
    .auth-card {
        padding: 25px 20px;
        border-radius: 10px;
    }
    
    .auth-header h1 {
        font-size: 1.8em;
        margin-bottom: 8px;
    }
    
    .auth-header p {
        font-size: 0.9em;
    }
    
    .auth-tabs {
        margin-bottom: 20px;
    }
    
    .tab-btn {
        padding: 10px;
        font-size: 0.95em;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 0.95em;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.95em;
        width: 100%;
    }
    
    .btn-sm {
        padding: 8px 12px;
        font-size: 0.85em;
    }
    
    .modal-content {
        width: 100%;
        padding: 15px;
        margin: 5% auto;
        border-radius: 8px;
    }
    
    .modal-header {
        margin-bottom: 15px;
        padding-bottom: 12px;
    }
    
    .modal-header h2 {
        font-size: 1.2em;
    }
    
    .close {
        font-size: 24px;
    }
    
    table {
        font-size: 0.85em;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    table th,
    table td {
        padding: 8px 4px;
        min-width: 80px;
    }
    
    /* Stack table on very small screens */
    @media (max-width: 360px) {
        table,
        thead,
        tbody,
        th,
        td,
        tr {
            display: block;
        }
        
        thead tr {
            position: absolute;
            top: -9999px;
            left: -9999px;
        }
        
        tr {
            border: 1px solid var(--border-color);
            margin-bottom: 10px;
            padding: 10px;
            border-radius: 5px;
        }
        
        td {
            border: none;
            position: relative;
            padding-left: 50%;
            text-align: left;
        }
        
        td:before {
            content: attr(data-label) ": ";
            position: absolute;
            left: 6px;
            width: 45%;
            font-weight: bold;
            color: var(--dark-color);
        }
    }
    
    .badge {
        font-size: 0.75em;
        padding: 3px 8px;
    }
    
    .message {
        padding: 10px;
        font-size: 0.9em;
    }
}

/* Extra Small Devices */
@media (max-width: 360px) {
    .auth-header h1 {
        font-size: 1.5em;
    }
    
    .header h1 {
        font-size: 1.2em;
    }
    
    .card-header h2 {
        font-size: 1em;
    }
    
    .stat-card .stat-value {
        font-size: 1.4em;
    }
}

/* Landscape Orientation on Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .auth-page {
        padding: 10px;
    }
    
    .auth-card {
        padding: 20px;
    }
    
    .navbar-menu {
        max-height: calc(100vh - 50px);
    }
}

/* Print Styles */
@media print {
    .navbar,
    .menu-toggle,
    .btn,
    .user-info {
        display: none;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
}

/* Loading Spinner */
.loader {
    border: 4px solid var(--light-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utilities */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.d-flex {
    display: flex;
}

.gap-10 {
    gap: 10px;
}

/* Navbar positioning fix */
.navbar-container {
    position: relative;
}